A calibration scheme is presented for improved polarization state measurement of terahertz pulses. In this scheme the polarization response of a two-contact terahertz photoconductive detector is accurately measured, and is used to correct for the impact of the nonidealities of the detector. Experimental results show excellent subdegree angular accuracy and at least 60% error reduction with this scheme.
© 2012 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: January 23, 2012
Revised Manuscript: March 13, 2012
Manuscript Accepted: March 18, 2012
Published: May 17, 2012
M. Neshat and N. P. Armitage, "Improved measurement of polarization state in terahertz polarization spectroscopy," Opt. Lett. 37, 1811-1813 (2012)